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2018 Volume 27 Issue 5
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Miao He, Feng Yang, Cheng Dong, Zhi-Chao Wang, Lei Yuan, Yi-Ting Xu, Guo-Chun Zhang, Zhi-Min Wang, Yong Bo, Qin-Jun Peng, Da-Fu Cui, Yi-Cheng Wu, Zu-Yan Xu. 2018: High-power ultraviolet 278-nm laser from fourth-harmonic generation of an Nd:YAG amplifier in CsB3O5 crystal, Chinese Physics B, 27(5): 265-269. doi: 10.1088/1674-1056/27/5/054211
Citation: Miao He, Feng Yang, Cheng Dong, Zhi-Chao Wang, Lei Yuan, Yi-Ting Xu, Guo-Chun Zhang, Zhi-Min Wang, Yong Bo, Qin-Jun Peng, Da-Fu Cui, Yi-Cheng Wu, Zu-Yan Xu. 2018: High-power ultraviolet 278-nm laser from fourth-harmonic generation of an Nd:YAG amplifier in CsB3O5 crystal, Chinese Physics B, 27(5): 265-269. doi: 10.1088/1674-1056/27/5/054211
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High-power ultraviolet 278-nm laser from fourth-harmonic generation of an Nd:YAG amplifier in CsB3O5 crystal

  • Key Laboratory of Solidstate Laser, Technical Institute of Physics and Chemistry(TIPC), Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Functional Crystal and Laser Technology, TIPC7, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China

  • Key Laboratory of Solidstate Laser, Technical Institute of Physics and Chemistry(TIPC), Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Functional Crystal and Laser Technology, TIPC7, Chinese Academy of Sciences, Beijing 100190, China

  • Key Laboratory of Solidstate Laser, Technical Institute of Physics and Chemistry(TIPC), Chinese Academy of Sciences, Beijing 100190, China

  • Key Laboratory of Functional Crystal and Laser Technology, TIPC7, Chinese Academy of Sciences, Beijing 100190, China

  • Available Online: 01/01/2018
  • Fund Project: the National Natural Science Foundation Program of China(Grant .11504389 and 61505226)%the National Key Research Development Program of China(Grant .2016YFB040203 and 61535013)%the National Development Project for Major Scientific Research Facility of China(Grant ZDYZ2012-2)
  • We report on the experimental investigation and theoretical analysis of a nanosecond pulse high power ultraviolet (UV) 278 nm laser by fourth-harmonic generation (FHG) of a 1112-nm Nd:YAG amplifier in LiB305 (LBO) and CsB305(CBO) crystals.The UV laser delivers a maximum average power of 10.3 W at 278 nm with peak power of 36.8 kW under input pump power of 41 W at 556 nm.This is,to the best of our knowledge,the highest output power at the specific UV wavelength of 278 nm.We also performed the theoretical investigation on the FHG with a model in the Gaussian approximation of both spatial and temporal profiles,especially accounting for the two-photon absorption effect in CBO crystal for the first time.The average output power,pulse width,and beam spatial distribution of the UV laser were simulated.The theoretical calculations are in close agreement with the experimental results.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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High-power ultraviolet 278-nm laser from fourth-harmonic generation of an Nd:YAG amplifier in CsB3O5 crystal

  • Available Online: 01/01/2018

Abstract: We report on the experimental investigation and theoretical analysis of a nanosecond pulse high power ultraviolet (UV) 278 nm laser by fourth-harmonic generation (FHG) of a 1112-nm Nd:YAG amplifier in LiB305 (LBO) and CsB305(CBO) crystals.The UV laser delivers a maximum average power of 10.3 W at 278 nm with peak power of 36.8 kW under input pump power of 41 W at 556 nm.This is,to the best of our knowledge,the highest output power at the specific UV wavelength of 278 nm.We also performed the theoretical investigation on the FHG with a model in the Gaussian approximation of both spatial and temporal profiles,especially accounting for the two-photon absorption effect in CBO crystal for the first time.The average output power,pulse width,and beam spatial distribution of the UV laser were simulated.The theoretical calculations are in close agreement with the experimental results.

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